title: The tragedy of needless pain.
authors.affiliation: McGill University.
authors.forename: R
authors.initials: R
authors.lastname: Melzack
mesh_terms: D000284:Administration, Oral; D000698:Analgesia; D000818:Animals; D001921:Brain / Q000502:physiology; D002056:Burns; D004361:Drug Tolerance; D006801:Humans; D007267:Injections; D007880:Legislation, Drug; D009020:Morphine / Q000008:administration & dosage / Q000627:therapeutic use*; D009369:Neoplasms; D010147:Pain Measurement; D010148:Intractable Pain / Q000188:drug therapy*; D051381:Rats; D013116:Spinal Cord / Q000502:physiology; D019966:Substance-Related Disorders / Q000235:genetics; D013514:Surgical Procedures, Operative
chemical_list: D009020:Morphine